wall(1) [bsd man page]

WALL(1) 						      General Commands Manual							   WALL(1)

NAME

       wall - write to all users

SYNOPSIS

       wall

DESCRIPTION

       Wall  reads  its  standard  input  until an end-of-file.  It then sends this message, preceded by `Broadcast Message ...', to all logged in
       users.

       The sender should be super-user to override any protections the users may have invoked.

FILES

       /dev/tty?
       /var/run/utmp

SEE ALSO

       mesg(1), write(1)

DIAGNOSTICS

       `Cannot send to ...' when the open on a user's tty file fails.

4th Berkeley Distribution					 November 27, 1996							   WALL(1)

WALL(1) 							Linux User's Manual							   WALL(1)

NAME

       wall -- send a message to everybody's terminal.

SYNOPSIS

       wall [ message ]

DESCRIPTION

       Wall  sends  a message to everybody logged in with their mesg(1) permission set to yes. The message can be given as an argument to wall, or
       it can be sent to wall's standard input. When using the standard input from a terminal, the message should be terminated with the  EOF  key
       (usually Control-D).

       The length of the message is limited to 20 lines.

NOTES

       There  is  an undocumented (well not anymore..) option, "-n", that supresses the banner printed by wall .  This is for usage by rwalld (8).
       Wall will not allow you to use that flag if wall is installed set-group-id and the user executing wall is not root.

       For every invocation of wall a notification will be written to syslog, with facility LOG_USER and level LOG_INFO.

ENVIRONMENT

       Wall ignores the TZ variable - the time printed in the banner is based on the systems local time.

SEE ALSO

       mesg(1), rpc.rwalld(8).

AUTHOR

       Miquel van Smoorenburg, miquels@cistron.nl

								 12 September 2000							   WALL(1)